Double Identity by K. Dawn Byrd is contemporary Young Adult fiction from Desert Breeze Publishing. The story premise opens with the Parent Trap — twins separated at birth by divorcing parents, but they have now found out about each other because the CA city girl twin must come live in Virginia with the mother and story protagonist while the father recovers from cancer surgery.

Dawn does one of those creative literary things by writing scenes in the protagonist's, Bree's, point of view in first person, and then switching to third person  for the scenes in her twin's, Cassie's, point of view. Boyfriend and bone of contention, Luke, gets a third person pov, too.

This is definitely a teen story with angst and drama and serious life issues such as learning to deal with a bipolar disorder. My biggest grumble was Luke's stupidity in the sense of "Fool me once, shame on you. Fool me twice, shame of me." But his foolishness caused more angst and tension.

The story continues in later books in the series.